JP2011113584A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device for reliably fixing a lead wire inserted between a traverse chassis and a driving motor. <P>SOLUTION: A driving motor 5 of a tray driving means is provided in one corner of a main chassis 2. A first substrate 11 is provided on one side of the main chassis 2 on both sides of the corner, and a second substrate 12 is provided on the other side. The lead wire W1 connected with the second substrate 12 and the first substrate 11 is included. The motor holder 4 for installing the driving motor 5 is provided with an erected wall 41 at the position facing the traverse chassis 3. In the erected wall 41, at a height position not in contact with the edge part 31 of the traverse chassis 3 and a worm gear 7 to be mounted to the driving shaft of the driving motor 5, a wiring part to insert the lead wire W1 is provided. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus for reproducing information recorded on an optical disc or recording / reproducing information on an optical disc.

  Conventionally, many types of optical discs such as CD (compact disc), DVD (digital versatile disc), HD-DVD (high density DVD), and Blu-ray disc have been put to practical use as disk-shaped storage media. In such an optical disc apparatus for reproducing or recording various types of optical discs, data is recorded and read out by irradiating the recording surface of the optical disc with a laser beam from an optical pickup.

  In addition, a disk tray on which an optical disk is placed and stored enters (loads) and exits (unloading) from an entrance provided on the front panel of the outer housing of the optical disk apparatus.

  The disc tray is mounted on a main chassis, which is a component part of the optical disc device, so as to be reciprocally movable. A traverse chassis including a turntable for rotating the optical disc placed on the disc tray and an optical pickup is connected to the main chassis. Thus, the optical disc is mounted so as to be tiltable in the direction of approaching / separating from the recording surface of the optical disc. As described above, the optical disc apparatus includes the main chassis, the disc tray, and the traverse chassis. As drive means, a tray drive means for moving the disk tray forward and backward, a disk rotation means, and the like are provided.

  The tray driving means reciprocates a rack provided on a side portion of the disk tray via a gear mechanism from a worm gear mounted on the rotation shaft of the driving motor. Further, the traverse chassis is tilted in a direction approaching or moving away from the recording surface of the optical disc through a gear mechanism that separately provides a rotational driving force of the drive motor.

  As described above, the optical disc apparatus is provided with electrical components such as a drive motor and other sensor switches inside the apparatus, and a substrate, a flexible flat cable, a lead wiring, and the like are installed at predetermined positions inside the apparatus. . Also, there may be moving objects such as a worm gear attached to the rotating shaft of the drive motor or a traverse chassis that tilts and moves near the position where the lead wiring is wired. There is a risk of damage.

  Therefore, in the disk device, a lead wire wiring structure and a disk device (see, for example, Patent Document 1) in which a motor lead wire is fixed by inserting a slit provided on a side wall of the chassis have been filed.

  In addition, when the flexible flat cable is attached to the traverse chassis, an optical disk device (for example, see Patent Document 2) that has been applied with an attachment surface as an inclined surface to reduce bending stress and prevent disconnection has already been filed by the present applicant. Yes.

JP 2003-317460 A JP 2009-80907 A

  By fixing the lead wiring to the side wall of the chassis, the installation position of the lead wiring with respect to the side wall can be clearly defined. However, when lead wiring is inserted between the traverse chassis that reciprocates instead of the side wall portion and the drive motor, the lead wiring cannot be accurately fixed at this portion.

  Further, when the lead wiring comes into contact with the edge portion of the tilting traverse chassis or the worm gear mounted on the rotating shaft of the rotating drive motor, the lead wiring film may be damaged and short-circuited or disconnected.

  For this purpose, an optical disc apparatus having a configuration in which lead wires inserted between the traverse chassis and the drive motor are securely fixed to portions other than the side walls of the chassis is particularly required.

  In view of the above problems, an object of the present invention is to provide an optical disc apparatus capable of reliably fixing a lead wiring inserted between a traverse chassis and a drive motor.

  In order to achieve the above object, the present invention provides a main chassis, a disk tray that reciprocates with respect to the main chassis to carry in and out of the optical disk, and a turntable that rotates the optical disk placed on the disk tray. In an optical disc apparatus comprising a traverse chassis provided with an optical pickup and a tray drive means for moving the disk tray forward and backward, a drive motor provided in the tray drive means is provided at one corner of the main chassis, and the corner is sandwiched between the drive motors. A first board is arranged on one side of the main chassis, a second board is arranged on the other side, and there is a lead wiring connected to the second board and the first board, and the drive motor is installed. A standing wall is provided at a position of the motor holder facing the traverse chassis, and the traverse of the standing wall Edge portion of Sushashi, and, at a height position not in contact with the worm gear to be mounted on the drive shaft of the drive motor, is characterized in that a wiring portion for inserting the lead wire.

  According to this configuration, even when the lead wiring is arranged between the drive motor and the traverse chassis that tilts in the direction of approaching / separating from the optical disc placed on the disc tray, the standing wall provided on the motor holder Thus, an optical disk device can be obtained in which the lead wiring is securely fixed at a height position that does not contact the edge portion of the traverse chassis and the worm gear.

  According to the present invention, in the optical disc apparatus configured as described above, the wiring section includes a wiring groove formed at an upper end portion of the standing wall. According to this configuration, since the lead wiring can be fixed by inserting the lead wiring into the wiring groove formed in the upper end portion of the standing wall, the wiring work of the lead wiring can be easily performed.

  According to the present invention, in the optical disk device having the above-described configuration, the motor holder is made of resin, and the standing wall is an integrally molded resin product with the motor holder. According to this configuration, it is possible to fix the lead wiring simply by changing the molding shape of the motor holder that has been adopted from the beginning, so new parts for fixing the lead wiring between the traverse chassis and the drive motor are newly added. There is no need to prepare, and the lead wiring can be securely fixed without increasing the number of parts.

  According to the present invention, in the optical disc apparatus configured as described above, the motor holder is further provided with a wiring hook for defining a lead wiring for inserting the wiring portion at a predetermined position. According to this configuration, the wiring posture of the lead wiring with respect to the first substrate and the second substrate can be reliably fixed by the cooperation of the standing wall provided on the motor holder and the wiring hook.

  According to the present invention, even when the lead wiring is arranged between the drive motor and the traverse chassis that tilts in a direction approaching / separating from the optical disk placed on the disk tray, the motor holder has a predetermined height position. Since the standing wall provided with the wiring portion is provided on the optical disk device, it is possible to obtain an optical disc apparatus that securely fixes the lead wiring at a height position that does not contact the edge portion of the traverse chassis and the worm gear.

It is a schematic explanatory drawing of the lead wiring of the optical disk apparatus based on this invention. It is a principal part enlarged view of the optical disk apparatus based on this invention. 1 is a schematic bottom view showing a configuration of a main part of an optical disc apparatus according to the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. Moreover, the same code | symbol is used about the same structural member, and detailed description is abbreviate | omitted suitably.

  First, the configuration of the main part of the optical disk apparatus according to the present embodiment will be described with reference to FIG. An optical disc apparatus 1 according to the present embodiment is an apparatus that records or reproduces data by irradiating an optical disc with a laser beam using an optical pickup. As shown in FIG. A traverse chassis 3 including a disc tray (not shown) for reciprocating the optical disc to carry in and out the optical disc, a turntable 19 for rotating the optical disc placed on the disc tray, and an optical pickup 13, and the disc tray A tray driving means for moving forward and backward is provided.

  The optical pickup 13 can be moved toward and away from the turntable 19 along the guide shafts 14 and 15 via the drive shaft 16. The traverse chassis 3 is attached to the main chassis 2 so as to be tiltable in a direction in which the turntable 19 approaches and separates from the recording surface of the optical disc via attachment portions 17 and 18 having rubber dampers.

  Therefore, when the optical disc is inserted (loading), the traverse chassis 3 is tilted so that the turntable 19 is separated from the optical disc, and after the optical disc is inserted, the traverse chassis 3 is tilted so that the turntable 19 approaches the optical disc, The optical disk can be clamped in cooperation with the turntable 19 and a clamper (not shown) installed above the optical disk. After the clamping, the turntable 19 can be rotated to rotate the optical disk.

  In addition, the optical pickup 13 travels and moves with respect to the rotating optical disc, and laser light is emitted from the optical pickup 13 to record or reproduce data. When taking out (unloading) the optical disk, the optical pickup 13 is moved to the initial position, the traverse chassis 3 is tilted so as to return the turntable 19 to the retracted position, and then the disk tray is protruded from the apparatus. Remove the optical disk.

  The tray drive means for the disc tray that carries in and out the optical disc includes a drive motor 5, a worm gear 7 mounted on the rotary shaft 6 of the drive motor 5, and a rotational driving force from the worm gear 7 via the gears 8 and 9. Is provided with a gear mechanism for reciprocating a rack provided on the disk tray.

  The drive motor 5 is installed in the main chassis 2 via the motor holder 4. The main chassis 2 is provided with a first substrate 11 and a second substrate 12. For example, the lead wiring W2 connected to the drive motor 5, the lead wiring W3 for electrically connecting to the electrical components installed in the traverse chassis 3, and the flexible flat cable FF are wired on the first substrate 11. For example, the substrate 12 is provided with a lead wiring W1 for electrical connection to a detection means for detecting the loading of the optical disk or the position of the disk tray.

  The lead wiring W1 is wired so as to pass between the traverse chassis 3 and the drive motor 5 as shown in the figure. At this time, as described above, the traverse chassis 3 is tilted in the direction approaching / separating from the optical disc, so that when the edge portion of the traverse chassis 3 and the lead wiring W1 come into contact with each other, the wiring film is damaged and short-circuited. Or undesirably causing disconnection.

  Further, even if the worm gear 7 mounted on the rotating shaft 6 of the drive motor 5 comes into contact with the lead wiring W1, it is not preferable because the film of the wiring is damaged and causes a short circuit or disconnection. Therefore, even if the lead wiring W1 is wired between the tilting traverse chassis 3 and the drive motor 5 to which the worm gear 7 is attached, the edge portion 31 (see FIG. 2) of the traverse chassis 3 and the worm gear 7 are connected. It is preferable that the lead wiring W1 be securely fixed at a position where it does not contact.

  Next, a fixed state of the lead wiring W1 according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 2, a drive motor 5 is installed at one corner of the main chassis 2, and a first substrate 11 is disposed on one side of the main chassis 2 sandwiching the corner, and a second substrate 12 is disposed on the other side. The drive motor 5 is fixed to a motor holder 4 installed on the main chassis 2. The motor holder 4 is a rigid three-dimensional shape capable of integrally mounting a gear 8 connected to the worm gear 7 mounted on the drive motor 5 and a gear 9 connected to the gear 8. It is a resin molded product. For example, from the drive motor 5 installed on one surface side of the main chassis 2 through the opening 2a of the main chassis 2, the other surface side of the main chassis (disc tray is disposed. The driving force is transmitted to the gear mechanism including the gear 8 located on the right side).

  In the present embodiment, as shown in FIG. 1, the connection terminal 11a of the first substrate 11 and the connection terminal 12a of the second substrate 12 are electrically connected using the lead wiring W1. That is, the lead wiring W <b> 1 is wired between the traverse chassis 3 and the drive motor 5. Therefore, a standing wall 41 is provided on the surface of the motor holder 4 facing the traverse chassis 3 so that the lead wiring W1 can be fixed at a safe position where the lead wiring W1 is not damaged, and the standing wall 41 is placed at a predetermined height position. The wiring portion is provided.

  The predetermined height position is a height position that does not contact the edge portion 31 of the traverse chassis 3 and the worm gear 7 attached to the drive shaft of the drive motor 5, and the lead wire W1 is located at this height position. By providing the wiring portion that holds the lead wire W1, it is possible to obtain an optical disk device that securely fixes the lead wiring W1 at a height position that does not contact the edge portion 31 of the traverse chassis 3 and the worm gear 7.

  The wiring portion may have a shape that holds or fixes the lead wiring W1 in a predetermined position. In the present embodiment, the wiring portion including the wiring grooves 42 and 43 is provided at the upper end portion of the standing wall 41. With this configuration, since the lead wiring W1 is inserted into the wiring grooves 42 and 43 formed at the upper end portion of the standing wall 41 to form a wiring portion that can securely fix the lead wiring W1, the lead wiring W1 can be secured. It is possible to easily perform the wiring work for fixing to a proper position.

  At this time, it is preferable to smoothly chamfer a portion having a large degree of bending of the wiring path because the coating is not damaged even if the wiring work is performed by pulling the lead wiring W1. Therefore, in the present embodiment, a cylindrical circular guide portion 44 is provided in a portion facing the second substrate 12.

  Further, when the height position of the wiring portion is set so that the lead wiring W1 inserted through the wiring grooves 42 and 43 does not contact the edge portion 31 of the traverse chassis 3 and does not contact the worm gear 7, the edge portion tilts and moves. It is preferable that the structure clearly does not come into contact with the rotating gear part.

  For this purpose, the height of the bottom surface of the wiring groove 42 is set to a height H1 higher than the edge portion 31 of the traverse chassis 3 tilted in the rising direction. Further, this height is set at a position higher than the worm gear 7 by H2.

  Moreover, since the structure which provided the new standing wall 41 in the motor holder 4 produces the effect which further strengthens the frame strength of the motor holder 4, the gear 8 and the gear 9 for transmitting a driving force are assembled | attached integrally. This is suitable for the frame member.

  In this way, the drive motor 5 provided in the tray driving means is provided at one corner of the main chassis 2, the first substrate 11 is disposed on one side of the main chassis 2 across the corner, and the second substrate 12 is disposed on the other side. And has a lead wire W1 connected to the second substrate 12 and the first substrate 11, and a standing wall 41 is provided at a position facing the traverse chassis 3 of the motor holder 4 where the drive motor 5 is installed. The wiring portion through which the lead wire W1 is inserted is provided at a height position of the standing wall 41 that does not contact the edge portion 31 of the traverse chassis 3 and the worm gear 7 attached to the drive shaft 6 of the drive motor 5. The lead wire W1 can be reliably fixed at a position where it does not contact the edge portion 31 of the traverse chassis 3 and the worm gear 7.

  The motor holder 4 may further include a wiring hook 45 that defines the lead wiring W1 that passes through the wiring portion at a predetermined position. The wiring hook 45 only needs to have a shape including a hook portion for locking the lead wiring W1, and the shape is not particularly limited. If the configuration includes the wiring hook 45, the wiring posture of the lead wiring W <b> 1 with respect to the first substrate 11 and the second substrate 12 is ensured by the cooperation of the standing wall 41 provided on the motor holder 4 and the wiring hook 45. Can be fixed.

  That is, the guide portion 44 provided on the standing wall 41 defines the attitude of the lead wiring W1 connected to the connection terminal 12a of the second substrate 12, and the wiring hook 45 connects to the connection terminal 11a of the first substrate 11. The posture of the lead wiring W1 can be defined and firmly fixed. In addition, the wiring posture between the traverse chassis 3 and the worm gear 7 can be reliably fixed via the wiring grooves 42 and 43.

  Further, the motor holder 4 can be made of resin, and the standing wall 41 can also be a resin molded product integrated with the motor holder 4. With this configuration, the lead wiring W1 can be fixed only by changing the molding shape of the motor holder 4 that has been adopted from the beginning. Therefore, the lead wiring W1 is fixed between the traverse chassis 3 and the drive motor 5. Therefore, it is not necessary to prepare a new part for this purpose, and the lead wiring W1 can be reliably fixed without increasing the number of parts.

  Of course, the wiring hook 45 can also be a resin molded product integrated with the motor holder 4. In this way, since the hook portion protruding from the holder main body portion can be elastically deformed if it is made of resin, the hook portion can be elastically deformed and locked during the wiring operation of the lead wiring W1. Thus, wiring work can be easily and reliably performed.

  As described above, according to the optical disc apparatus of the present invention, the standing wall including the wiring portion is provided at the predetermined height position of the motor holder, so that the lead is positioned at a height position that does not contact the edge portion of the traverse chassis and the worm gear. An optical disk device that securely fixes the wiring can be obtained.

  In addition, since it is a resin molded product motor holder that is integrally provided with a standing wall having a wiring groove to be a wiring part, a new part for fixing the lead wiring becomes unnecessary, and an increase in the part cost is suppressed. Can do.

  In addition, the frame strength of the motor holder having a structure in which a gear for transmitting a driving force is integrally attached to a gear mechanism that performs forward / backward movement of the disc tray can be enhanced.

  For this reason, the optical disk apparatus according to the present invention is an optical disk apparatus for securely fixing a lead wiring to be wired when forming a wiring portion between a tilting traverse chassis and a rotating worm gear in a DVD player, a DVD recorder or the like. It can be suitably applied to.

DESCRIPTION OF SYMBOLS 1 Optical disk apparatus 2 Main chassis 3 Traverse chassis 4 Motor holder 5 Drive motor 7 Worm gear 8, 9 Gear 11 1st board | substrate 12 2nd board | substrate 13 Optical pick-up 19 Turntable 41 Standing wall 42 Wiring groove 44 Guide part 45 Wiring hook W1 Lead wiring

Claims (4)

A main chassis, a disk tray that reciprocates with respect to the main chassis to load and unload an optical disk, a traverse chassis that includes a turntable that rotates the optical disk placed on the disk tray, and an optical pickup; and the disk tray In an optical disc device comprising a tray drive means for performing forward and backward movement of
A drive motor provided in the tray driving means is provided at one corner of the main chassis, a first substrate is disposed on one side of the main chassis across the corner, a second substrate is disposed on the other side, and the second Having lead wiring connected to the substrate and the first substrate;
A standing wall is provided at a position facing the traverse chassis of the motor holder for installing the drive motor,
An optical disc comprising: a wiring portion through which the lead wire is inserted at a height position of the standing wall that does not contact an edge portion of the traverse chassis and a worm gear attached to a drive shaft of the drive motor. apparatus.   The optical disk apparatus according to claim 1, wherein the wiring portion includes a wiring groove formed in an upper end portion of the standing wall.   3. The optical disc apparatus according to claim 1, wherein the motor holder is made of resin, and the standing wall is a resin molded product integrated with the motor holder.   4. The optical disc apparatus according to claim 1, further comprising a wiring hook that defines a lead wiring that passes through the wiring portion at a predetermined position in the motor holder.

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